<template>
    <div ref="ech" id="map">
    </div>
</template>

<script>
import * as echarts from "echarts";
// 二 引入json文件
import china from "@/assets/js/china.json";

export default {
    props: {
    },
    data() {
        return {};
    },
    methods: {
        handleSearch() {
            // 三 局部使用
            // 1 初始化echarts,获取dom元素
            console.log(112233);
            let myChart = echarts.init(document.getElementById("map"));
            echarts.registerMap("china", china);
            // 2 配置图表和数据
            // 2. 指定配置和数据
            var geoCoordMap = {
                上海: [121.4648, 31.2891],
                东莞: [113.8953, 22.901],
                东营: [118.7073, 37.5513],
                中山: [113.4229, 22.478],
                临汾: [111.4783, 36.1615],
                临沂: [118.3118, 35.2936],
                丹东: [124.541, 40.4242],
                丽水: [119.5642, 28.1854],
                乌鲁木齐: [87.9236, 43.5883],
                佛山: [112.8955, 23.1097],
                保定: [115.0488, 39.0948],
                兰州: [103.5901, 36.3043],
                包头: [110.3467, 41.4899],
                北京: [116.4551, 40.2539],
                北海: [109.314, 21.6211],
                南京: [118.8062, 31.9208],
                南宁: [108.479, 23.1152],
                南昌: [116.0046, 28.6633],
                南通: [121.1023, 32.1625],
                厦门: [118.1689, 24.6478],
                台州: [121.1353, 28.6688],
                合肥: [117.29, 32.0581],
                呼和浩特: [111.4124, 40.4901],
                咸阳: [108.4131, 34.8706],
                哈尔滨: [127.9688, 45.368],
                唐山: [118.4766, 39.6826],
                嘉兴: [120.9155, 30.6354],
                大同: [113.7854, 39.8035],
                大连: [122.2229, 39.4409],
                天津: [117.4219, 39.4189],
                太原: [112.3352, 37.9413],
                威海: [121.9482, 37.1393],
                宁波: [121.5967, 29.6466],
                宝鸡: [107.1826, 34.3433],
                宿迁: [118.5535, 33.7775],
                常州: [119.4543, 31.5582],
                广州: [113.5107, 23.2196],
                廊坊: [116.521, 39.0509],
                延安: [109.1052, 36.4252],
                张家口: [115.1477, 40.8527],
                徐州: [117.5208, 34.3268],
                德州: [116.6858, 37.2107],
                惠州: [114.6204, 23.1647],
                成都: [103.9526, 30.7617],
                扬州: [119.4653, 32.8162],
                承德: [117.5757, 41.4075],
                拉萨: [91.1865, 30.1465],
                无锡: [120.3442, 31.5527],
                日照: [119.2786, 35.5023],
                昆明: [102.9199, 25.4663],
                杭州: [119.5313, 29.8773],
                枣庄: [117.323, 34.8926],
                柳州: [109.3799, 24.9774],
                株洲: [113.5327, 27.0319],
                武汉: [114.3896, 30.6628],
                汕头: [117.1692, 23.3405],
                江门: [112.6318, 22.1484],
                沈阳: [123.1238, 42.1216],
                沧州: [116.8286, 38.2104],
                河源: [114.917, 23.9722],
                泉州: [118.3228, 25.1147],
                泰安: [117.0264, 36.0516],
                泰州: [120.0586, 32.5525],
                济南: [117.1582, 36.8701],
                济宁: [116.8286, 35.3375],
                海口: [110.3893, 19.8516],
                淄博: [118.0371, 36.6064],
                淮安: [118.927, 33.4039],
                深圳: [114.5435, 22.5439],
                清远: [112.9175, 24.3292],
                温州: [120.498, 27.8119],
                渭南: [109.7864, 35.0299],
                湖州: [119.8608, 30.7782],
                湘潭: [112.5439, 27.7075],
                滨州: [117.8174, 37.4963],
                潍坊: [119.0918, 36.524],
                烟台: [120.7397, 37.5128],
                玉溪: [101.9312, 23.8898],
                珠海: [113.7305, 22.1155],
                盐城: [120.2234, 33.5577],
                盘锦: [121.9482, 41.0449],
                石家庄: [114.4995, 38.1006],
                福州: [119.4543, 25.9222],
                秦皇岛: [119.2126, 40.0232],
                绍兴: [120.564, 29.7565],
                聊城: [115.9167, 36.4032],
                肇庆: [112.1265, 23.5822],
                舟山: [122.2559, 30.2234],
                苏州: [120.6519, 31.3989],
                莱芜: [117.6526, 36.2714],
                菏泽: [115.6201, 35.2057],
                营口: [122.4316, 40.4297],
                葫芦岛: [120.1575, 40.578],
                衡水: [115.8838, 37.7161],
                衢州: [118.6853, 28.8666],
                西宁: [101.4038, 36.8207],
                西安: [109.1162, 34.2004],
                贵阳: [106.6992, 26.7682],
                连云港: [119.1248, 34.552],
                邢台: [114.8071, 37.2821],
                邯郸: [114.4775, 36.535],
                郑州: [113.4668, 34.6234],
                鄂尔多斯: [108.9734, 39.2487],
                重庆: [107.7539, 30.1904],
                金华: [120.0037, 29.1028],
                铜川: [109.0393, 35.1947],
                银川: [106.3586, 38.1775],
                镇江: [119.4763, 31.9702],
                长春: [125.8154, 44.2584],
                长沙: [113.0823, 28.2568],
                长治: [112.8625, 36.4746],
                阳泉: [113.4778, 38.0951],
                青岛: [120.4651, 36.3373],
                韶关: [113.7964, 24.7028]
            };

            var XAData = [
                [{ name: "西安" }, { name: "北京", value: 100 }],
                [{ name: "西安" }, { name: "上海", value: 100 }],
                [{ name: "西安" }, { name: "广州", value: 100 }],
                [{ name: "西安" }, { name: "西宁", value: 100 }],
                [{ name: "西安" }, { name: "拉萨", value: 100 }]
            ];

            var XNData = [
                [{ name: "西宁" }, { name: "北京", value: 100 }],
                [{ name: "西宁" }, { name: "上海", value: 100 }],
                [{ name: "西宁" }, { name: "广州", value: 100 }],
                [{ name: "西宁" }, { name: "西安", value: 100 }],
                [{ name: "西宁" }, { name: "银川", value: 100 }]
            ];

            var YCData = [
                [{ name: "拉萨" }, { name: "北京", value: 100 }],
                [{ name: "拉萨" }, { name: "潍坊", value: 100 }],
                [{ name: "拉萨" }, { name: "哈尔滨", value: 100 }]
            ];

            var planePath =
                "path://M1705.06,1318.313v-89.254l-319.9-221.799l0.073-208.063c0.521-84.662-26.629-121.796-63.961-121.491c-37.332-0.305-64.482,36.829-63.961,121.491l0.073,208.063l-319.9,221.799v89.254l330.343-157.288l12.238,241.308l-134.449,92.931l0.531,42.034l175.125-42.917l175.125,42.917l0.531-42.034l-134.449-92.931l12.238-241.308L1705.06,1318.313z";
            //var planePath = 'arrow';
            var convertData = function (data) {
                var res = [];
                for (var i = 0; i < data.length; i++) {
                    var dataItem = data[i];

                    var fromCoord = geoCoordMap[dataItem[0].name];
                    var toCoord = geoCoordMap[dataItem[1].name];
                    if (fromCoord && toCoord) {
                        res.push({
                            fromName: dataItem[0].name,
                            toName: dataItem[1].name,
                            coords: [fromCoord, toCoord],
                            value: dataItem[1].value
                        });
                    }
                }
                return res;
            };

            var color = ["#fff", "#fff", "#fff"]; //航线的颜色
            var series = [];
            [
                ["西安", XAData],
                ["西宁", XNData],
                ["银川", YCData]
            ].forEach(function (item, i) {
                series.push(
                    {
                        name: item[0] + " Top3",
                        type: "lines",
                        zlevel: 1,
                        effect: {
                            show: true,
                            period: 6,
                            trailLength: 0.7,
                            color: "red", //arrow箭头的颜色
                            symbolSize: 3
                        },
                        lineStyle: {
                            normal: {
                                color: color[i],
                                width: 0,
                                curveness: 0.2
                            }
                        },
                        data: convertData(item[1])
                    },
                    {
                        name: item[0] + " Top3",
                        type: "lines",
                        zlevel: 2,
                        symbol: ["none", "arrow"],
                        symbolSize: 10,
                        effect: {
                            show: true,
                            period: 6,
                            trailLength: 0,
                            symbol: planePath,
                            symbolSize: 15
                        },
                        lineStyle: {
                            normal: {
                                color: color[i],
                                width: 1,
                                opacity: 0.6,
                                curveness: 0.2
                            }
                        },
                        data: convertData(item[1])
                    },
                    {
                        name: item[0] + " Top3",
                        type: "effectScatter",
                        coordinateSystem: "geo",
                        zlevel: 2,
                        rippleEffect: {
                            brushType: "stroke"
                        },
                        label: {
                            normal: {
                                show: true,
                                position: "right",
                                formatter: "{b}"
                            }
                        },
                        symbolSize: function (val) {
                            return val[2] / 8;
                        },
                        itemStyle: {
                            normal: {
                                color: color[i]
                            },
                            emphasis: {
                                areaColor: "#2B91B7"
                            }
                        },
                        data: item[1].map(function (dataItem) {
                            return {
                                name: dataItem[1].name,
                                value: geoCoordMap[dataItem[1].name].concat([dataItem[1].value])
                            };
                        })
                    }
                );
            });
            var option = {
                tooltip: {
                    trigger: "item",
                    formatter: function (params, ticket, callback) {
                        if (params.seriesType == "effectScatter") {
                            return "线路：" + params.data.name + "" + params.data.value[2];
                        } else if (params.seriesType == "lines") {
                            return (
                                params.data.fromName +
                                ">" +
                                params.data.toName +
                                "<br />" +
                                params.data.value
                            );
                        } else {
                            return params.name;
                        }
                    }
                },

                geo: {
                    map: "china",
                    label: {
                        emphasis: {
                            show: true,
                            color: "#fff"
                        }
                    },
                    roam: false,
                    //   放大我们的地图
                    zoom: 1,
                    itemStyle: {
                        normal: {
                            areaColor: "rgba(43, 196, 243, 0.42)",
                            borderColor: "rgba(43, 196, 243, 1)",
                            borderWidth: 1
                        },
                        emphasis: {
                            areaColor: "#2B91B7"
                        }
                    }
                },
                series: series
            };
            // 3 将配置好的图表加到dom元素上面
            myChart.setOption(option);

            // 4 图表的响应式.嵌套宽度必须设置%
            window.addEventListener("resize", () => {
                myChart.resize();
            })
        },
    },
    mounted() {
        this.$nextTick(() => {
            this.handleSearch();
        })
    },
}
</script>

<style>
#map {
    height: 100%;
    width: 100%;
}
</style>